Draft-equalizer



UNITED STATES PATENT OF ICE.

DAVID M. HARKRADER, OF PITTSFIELD, ILLINOIS.

DRAFT-EQUALIZER.

SPECIFIOATIONforming part of Letters Patent No. 252,212, dated January 10, 1882.

' Application filed November 12, 1881. (Model) To all whom it may concern:

Be it known that I, DAVID M. HARKRADER, a citizen of theUu'ited States, resident of Pittsfield,in the county of Pike and State ofIllinois,

haveinvented-a new and valuable Improvement in Draft-Equalizers; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon. a a

Figure 1 of the drawings is a representation of a plan or top view of my improvedequalizer, and Fig. 2 is a front view of the same.

This invention has relation to draft-equalizers; and it consists in the construction and novel arrangement of the raised eye at the inner end of the equalizing-bar and the oblique outer end of said bar carrying the single-tree attachment, and designed to provide for a-lifting pull, and thereby to avoid downward pressure, all as hereinafter set forth.

1n the annexed drawings, theletter A designates the double-tree, to the ends of which the equalizing-bars Bare pivoted by means of the bolts 0, said equalizing-bars resting on wearplates D usually, and being arranged on the top of the double-tree. Two or more bolt-holes, a, may be provided at each end of the doubletree, as indicated in the drawings. The equalizing-bars B are madeof bar-iron in flattened form, and are provided in their middle portions each with two or more pivot-holes, b, corresponding in position to the bolt-holes a in the double-tree, and so arranged in order that the pivot-bolt maybe shifted to adjust the draft without altering the position of the equal izing-bars. At its inner end each equalizingbar is provided with a raised eye, 0, to which the single-tree hook cl is designed to be attached. This eye is arranged above the equalizing-bar in order to prevent the single-trees from looking. The eye is usually fastened by means of its shank 6 within the upwardlycurved end 9 of the bar, which is firmly clamped on said shank in such a manner as to hold the eye in a fixed position with relation to the bar. The outer end, E, of the evener or equalizingbar B is somewhat oblique with relation to the body of the bar, being inclined forward and downward beyond the twist it in the bar. A series of perforations, 7c, is made in the inclined end E, affording means for connecting the adjustable sin gle-tree hook I thereto. is provided with a threaded shank or bolt connection, whereby it is fastened firmly to the end E of the bar, so that when the draft is applied this end of the bar will be subject to a lifting strain, tendingto throw the double-tree upward and to prevent downward pressure.

A double tree formed with two sets of holes and eveners connected with the double-tree by clevises and bolts, the latter being passed through the cl'evises and the holes in the eveners and double-tree, may be seen in my Patent No. 231,037, August 10, 1880, and said construction is not claimed herein.

, Having described this invention, what I claim, and desire to secure by Letters Patent, 1s

1. An equalizing-bar, B, having the twist it and the inclined end E beyond the twist, provided with the hook I, substantially as specifled.

2. An'equalizing-bar, B, having at its outer portion the inclined end E, perforated for the hook-connection, and atits inner end the raised eye 0 above the plane of the bar, substantially as specified.

3. The combination, with the double-tree having the bolt-holes a a in each end, of the equalizing-bars B B, having raised eyes 0 at their inner ends, outer inclined ends, E, hooks l, and pivot-holes b b, corresponding in position to said bolt-holes, and the adjustable pivot-bolts G, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

DAVID M. HARKRADER.

Witnesses JoHN S. OoNNE'rT, CHAS. E. FOLEY,

This hook 

